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2    S&C Instruction Sheet 515-530

Introduction

Qualified Persons

 WARNING

Only qualified persons who are knowledgeable in the installation, operation, and 
maintenance of overhead and underground electric distribution equipment, along 
with all associated hazards, may install, operate, and maintain the equipment 
covered by this publication . A qualified person is someone who is trained and 
competent in:
•  The skills and techniques necessary to distinguish exposed live parts from nonlive 

parts of electrical equipment

•  The skills and techniques necessary to determine the proper approach distances 

corresponding to the voltages to which the qualified person will be exposed

•  The proper use of special precautionary techniques, personal protective 

equipment, insulated and shielding materials, and insulated tools for working on 
or near exposed energized parts of electrical equipment

These instructions are intended ONLY for such qualified persons . They are not 
intended to be a substitute for adequate training and experience in safety procedures 
for this type of equipment .

Read this  

Instruction Sheet

NOTICE

Thoroughly and carefully read this instruction sheet and all materials included in the 
product’s instruction handbook before installing or operating a Micro-AT Source-
Transfer Control . Familiarize yourself with the Safety Information and Safety 
Precautions on pages 3 and 4 . The latest version of this publication is available 
online in PDF format at 

sandc.com/en/support/product-literature/ .

Retain this  

Instruction Sheet

This instruction sheet is a permanent part of the S&C Micro-AT Source-Transfer Control. 
Designate a location where it can be easily retrieved and refer to. 

Proper Application

 WARNING

The equipment in this publication is only intended for a specific application . The 
application must be within the ratings furnished for the equipment . Specifications 
for the S&C Micro-AT Source-Transfer Control are listed in Specification Bulletin 
515-31 . 

Warranty

The warranty and/or obligations described in S&C’s Price Sheet 150, “Standard Conditions 
of Sale–Immediate Purchasers in the United States,” (or Price Sheet 153, “Standard 
Conditions of Sale–Immediate Purchasers Outside the United States”), plus any special 
warranty provisions, as set forth in the applicable product-line specification bulletin, 
are exclusive. The remedies provided in the former for breach of these warranties shall 
constitute the immediate purchaser’s or end user’s exclusive remedy and a fulfillment of 
the seller’s entire liability. In no event shall the seller’s liability to the immediate purchaser 
or end user exceed the price of the specific product that gives rise to the immediate 
purchaser’s or end user’s claim. All other warranties, whether express or implied or 
arising by operation of law, course of dealing, usage of trade or otherwise, are excluded. 
The only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE 
ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS 
FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION 
PROVIDED IN PRICE SHEET 150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE 
IMMEDIATE PURCHASER AND END USER, AS DEFINED THEREIN. OTHER THAN AN 
END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR 
PROMISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION 
THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE 
SHEET 150 (or PRICE SHEET 153).

Summary of Contents for Micro-AT

Page 1: ...uction Sheet 2 Proper Application 2 Warranty 2 Safety Information Understanding Safety Alert Messages 3 Following Safety Instructions 3 Replacement Instructions and Labels 3 Safety Precautions 4 Quick...

Page 2: ...gnate a location where it can be easily retrieved and refer to Proper Application WARNING The equipment in this publication is only intended for a specific application The application must be within t...

Page 3: ...ecautions are not followed NOTICE NOTICE identifies important procedures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If...

Page 4: ...h clothing in accordance with safe operating procedures and rules 4 SAFETY LABELS Do not remove or obscure any of the DANGER WARNING CAUTION or NOTICE labels 5 OPERATING MECHANISMS Do not remove or di...

Page 5: ...Next item key before the Quit key NOTICE When changing the Select Bus Type or Select Preferred settings in the Configure menu the Micro AT control will power down and reboot A System Startup event wi...

Page 6: ...n factory set for the 4 Wire voltage sensing setting PRESS ENTER NORMALIZE RIGHT Means of compensating for any output voltage magnitude unbal ance and or phase angle unbalance between voltage sensing...

Page 7: ...EEEEEEEEECHANGE The other field adjustable items of the Configure menu can be changed in the same manner Procedures for normalizing the left and right sources setting the base voltages on the left and...

Page 8: ...ll now look like this ECONFIG ESETEBASEELEFT E120E VOLTSEEEEEEEEE_____ Enter the desired left source base voltage If for example 117 volts is the desiredvalue the 1 1 and 7 keyswouldbepressed followed...

Page 9: ...th the communi cations card proceed to Step 3 Here s the display for CONFIG COM BIT RATE with its factory setting 19200 BITS PER SECOND CONFIG ECOME0EBITERATE E19200EEEEEEEEEEEEECHANGE Ifadifferentdat...

Page 10: ...ear which if equaled or exceeded will result in control initiating auto matic transfer Also if the Hold return setting has been selected unbal ance level on alternate source or unbalance level on sour...

Page 11: ...f the lockout level is to be set to some other value press the Change key If the display prompts that the access code number to be reentered do so The display will now look like this CURRENT LOCKOUT L...

Page 12: ...a time window in which an automatic return of source transfer can occur the window is adjustable from 1 minute to 3 hours Transfer will take place after the return of source time delay has expired pr...

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